64905416 has 16 divisors (see below), whose sum is σ = 122953740. Its totient is φ = 32117760.

The previous prime is 64905377. The next prime is 64905457. The reversal of 64905416 is 61450946.

64905416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 54316900 + 10588516 = 7370^2 + 3254^2 .

It is a super-2 number, since 2×64905416² = 8425426052266112, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41045 + ... + 42596.

Almost surely, 2^64905416 is an apocalyptic number.

It is an amenable number.

64905416 is a deficient number, since it is larger than the sum of its proper divisors (58048324).

64905416 is a wasteful number, since it uses less digits than its factorization.

64905416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83744 (or 83740 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 64905416 is about 8056.3897621701. The cubic root of 64905416 is about 401.8774574303.

The spelling of 64905416 in words is "sixty-four million, nine hundred five thousand, four hundred sixteen".